Linking against OBJECT libraries as done in fluid since May 2023
and in shared library builds using MSVC even much earlier
requires at least CMake 3.12.
This commit adds the requirement explicitly to abort the build early.
- remove separate libfltk_cairo to avoid cyclic dependencies, but
- keep a dummy libfltk_cairo in 1.4.0 for backwards compatibility
- move cairo/Fl_Cairo.cxx to src/Fl_Cairo.cxx
- add preliminary Cairo support for Visual Studio (MSVC)
Static linking is not affected by this change, but users building
with hand-made Makefiles will have to remove libfltk_cairo starting
with FLTK 1.4.0. The dummy library can be linked for backwards
compatibility but it will be removed later (in 1.4.x or 1.5.0).
The shared FLTK library libfltk.{so|dylib|dll|..} depends on libcairo
if and only if FLTK is built with one of the Cairo options. This has
always been the case for OPTION_CAIROEXT but is now also true if only
OPTION_CAIRO is selected, i.e. FLTK programs linked with a Cairo
enabled shared FLTK library will also be linked with libcairo. The same
is true for configure options --enable-cairo and --enable-cairoext,
respectively.
Preliminary Cairo support for MSVC now detects a Cairo installation
using the CMake variable FLTK_CAIRO_DIR which must be set by the user.
Note that this feature is temporary and may be changed in the future
for a better and more comfortable version.
fl_debug_pkg(...) can be used to display CMake variables set by
executing pkg_check_modules(). This is for CMake debugging only.
The CMake configuration summary displays configuration options
of Wayland, Pango, Xft, and Cairo configuration.
The CMake instructions would use the wrong image libs (png, jpeg, zlib)
if the fallback was active (OPTION_USE_SYSTEM_XXX) was true but the
header files were not present.
This had already been fixed for jpeg but not for the other two libs.
This commit rearranges the logic for all three libs.
Add information about builtin or system libraries to config summary.
... as discussed in fltk.coredev in thread "RFC: introduce public
config header <FL/fl_config.h>", see:
https://groups.google.com/g/fltkcoredev/c/xLCs1AIXMVo/m/MHZpQggzAQAJ
- Rename abi-version.h to fl_config.h, rename input files,
update dependencies, .gitignore, CMake, configure and Makefiles.
- Include Cairo options in FL/fl_config.h
- Rename FLTK_USE_CAIRO to FLTK_HAVE_CAIROEXT for consistency.
- Include <FL/fl_config.h> in config.h and wherever necessary,
fix include order (move FL/Fl.H to the top) and more.
- Move USE_X11 to fl_config.h and rename to FLTK_USE_X11
- Do not include <config.h> in Cairo demo program which is no
longer required in Cairo programs since FLTK 1.4.0
CMake/compatibility.cmake: define functions and macros to be used
if a particular CMake functionality requires a higher CMake version
than FLTK's minimum CMake version, see 'cmake_minimum_required(...)'
in the root CMakeLists.txt.
Note: target_link_directories() is available since CMake 3.13
- add missing dependencies to build the shared libfltk_cairo(.dylib)
- remove incorrect dependency on cairo from libfltk
- add cairo_test-shared demo (linked with shared libs)
Newer CMake versions warn if CMake policy CMP0072 is not set. We're
using "legacy mode" since we use FindOpenGL with `OPENGL_LIBRARIES`
and not (yet) the `OpenGL::GL` target.
See https://cmake.org/cmake/help/latest/policy/CMP0072.html
- raise minimum CMake version from 2.6.3 to 3.2.3 (Jun 01, 2015)
- indent all CMake files according to the CMP (2 col.)
- refactor FLTK version number definitions and usage
- unify CMake and autoconf/configure variable names:
- FL_VERSION -> FLTK_VERSION
- FL_MAJOR_VERSION -> FLTK_VERSION_MAJOR
- etc. for _MINOR_ and _PATCH_, respectively
- note: this does not affect FL_VERSION etc. in source code
- generate "export headers" for all libraries (experimental: OFF)
- port some forgotten goodies from branch-1.3 to master
- merge and improve macro 'create_example' (WIP)
- remove "temporary" options and code for older CMake versions
- include and use 'GenerateExportHeader' (experimental, WIP: OFF)
- note: created header files are not yet used
- build only *one* DLL with Visual Studio (tested, works)
- similar to the bundled IDE projects in 1.3.x
- add some dynamically linked test/demo programs ('*-shared')
if shared libraries are built (WIP)
- split 'macros.cmake': use one file per macro
- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files
The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.
Some debug messages are included, but currently disabled.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12658 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Basically replace CMAKE_XXX_DIR with CMAKE_CURRENT_XXX_DIR where
XXX = SOURCE or BINARY.
Patch proposal by cleanrock, FLTK PR #4:
https://github.com/fltk/test-only/pull/4
Patch modified to fix target dirs for test programs and doxygen docs.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12630 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
CMake variables FLTK_SOURCE_DIR and FLTK_BINARY_DIR are only defined
if the project name is exactly "FLTK" (all uppercase). These variables
are generated (set) by CMake as <PROJECT_NAME>_SOURCE_DIR etc.
The correct variables are CMAKE_SOURCE_DIR and CMAKE_BINARY_DIR,
respectively, which are always defined.
This commit enables future changes of the FLTK project name, e.g. to
"fltk" or "fltk-1.4.0" (a versioned project name), if we like...
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12281 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Verified build with CMake 2.6.3 (failed with 2.6.2).
We need 2.6.3 for "unset" (unknown command in 2.6.2 and earlier).
CMake 2.6.2 also fails when parsing nested brackets in logical
expressions like the following one:
if((NOT APPLE OR OPTION_APPLE_X11) AND NOT WIN32)
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11397 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit adds the configure option --with-abiversion and the CMake option
OPTION_ABI_VERSION. Both options can be set e.g. to 10304 to build with
FL_ABI_VERSION = 10304 (FLTK 1.3.4).
For IDE builds there are new files ide/<IDE-NAME>/FL/abi-version.h that
can be edited to change the ABI version before the FLTK lib is built.
Note that this file MUST be copied to the include/FL directory if the
IDE-built library is to be installed.
The default is FL_ABI_VERSION = FL_MAJOR*10000 + FL_MINOR*100 + 0, i.e.
10300 for all FLTK 1.3.x versions to keep binary compatibility (ABI).
Todo: more tests and more documentation.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10786 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
unused function strtoll() [resolves one part of STR #2965].
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9923 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
